色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

我們未來最大的危險是冷漠。

If you say you want to automate cars and save people’s lives, the skills you need for that aren’t taught in any particular discipline. I know – I was interested in working on automating cars when I was a Ph.D. student in 1995.

永遠傾聽你的觀眾。如果你愿意聽，他們會告訴你他們想要什么。

Psychology is a science, and teaching is an art; and sciences never generate arts directly out of themselves.

成就沒有捷徑。生活需要充分的準備。